<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Vue监测数据改变的原理_数组</title>
  <!-- 引入Vue -->
  <script type="text/javascript" src="../js/vue.js"></script>
</head>

<body>
  <!-- 准备好一个容器 -->
  <div id="root">
    <h1>学校信息</h1>
    <h2>学校名称:{{school.name}}</h2>
    <h2>学校地址:{{school.address}}</h2>
    <h2>学校校长:{{school.leader}}</h2>
    <hr />
    <h1>学生信息</h1>
    <button @click="addSex">添加一个性别属性,默认值是男</button>
    <h2>学生姓名:{{student.name}}</h2>
    <h2 v-if="student.sex">性别:{{student.sex}}</h2>
    <h2>学生年龄:真实 {{student.age.rAge}}, 对外{{student.age.sAge}}</h2>
    <h2>爱好</h2>
    <ul>
      <li v-for="(h,index) in student.hobby" :key="index">
        {{h}}
      </li>
      <h2>朋友们</h2>
      <ul>
        <li v-for="(f,index) in student.friends" :key="index">
          {{f.name}}--{{f.age}}
        </li>

      </ul>
  </div>
</body>

<script type="text/javascript">

  const vm = new Vue({
    el: '#root',
    data: {
      school: {
        name: '尚硅谷',
        address: '北京',
        leader: ''
      },
      student: {
        name: 'Tom',
        sex: '男',
        age: {
          rAge: 40,
          sAge: 29,
        },
        hobby: ['抽烟', '喝酒', '烫头']
        friends: [
          { name: 'Jerry', age: 35 },
          { name: 'Tony', age: 40 }
        ]
      }
    },
    methods: {
      addSex() {
        Vue.set(this.student, 'sex', '男')
      }
    },
  })
</script>

</html>